Centipedes like to live in the same environment as millipedes. There are two common species of centipede in the United States. The common house centipede has long antennae and 15 pair of long legs. The second species of centipede is both larger and longer. Most common in the south, this centipede can grow to over 5 inches long. Centipedes are slow to develop. They like moist areas for nesting including mulch, pine straw, thatch, leaves and under rocks or logs. Centipedes have a poisonous bite. Do not handle them. Like scorpions, their sting will hurt. It is similar to a wasp or bee sting. However, certain people may have extreme allergic reaction to their venom so keeping your hands off them will prevent you from finding out if you are overly sensitive. Centipedes are one of the few predators which feed on spiders. They prefer to move at night, but like millipedes will migrate under certain conditions. It is not uncommon to have several of them migrate when water levels rise following a rain. Centipede nests may harbor several hundred and when they migrate they seem to all move in the same direction. This will lead to infestations in the home if left untreated.